of_find_compatible_node() returns a pointer with refcount incremented
so both in the error path as well as after usage in soc_info_populate()
respectively actually b8500_read_soc_id() an explicit of_node_put is
needed to release backupram.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Fixes: commit 18a992787896 ("ARM: ux500: move soc_id driver to drivers/soc") Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>